Hinged and sliding double sash window allowing both sashes to open in adjacent positions due to outer sash having its hinge offset by a L-shaped bracket

摘要

The vertical sash window comprising a guide frame having two side vertical guide rails 4,5 a top sash U and a bottom sash B, each sash having at one side means for moving that sash vertically in the frame, the moving means 6,7 being present in the adjacent guide rail 4, the sash being attached to the guide rail associated with the moving means therefore by hinge means 12,22 arranged to pivot the sash with respect to the frame 4, the opposite side of each sash being releasably engaged with the adjacent guide rail 5, the hinge means of one sash being offset from its associated rail and comprising an 'L'-shaped hinge or bracket 22 one arm of which is attached to its guide rail 4, and the other of which is attached to the sash U.